USB FDD@1306 USB floppy adapter
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This is an adapter for using full-size 3.5" floppy drives as USB floppy drives. It uses an unknown 24-pin TSOP/TSSOP? microcontroller. The chip has "6520" on the underside. The oscillator on the board is 12 mhz.
It's sometimes listed as "UPC 699920449831"
|USB Data+||7||18||Track 0|
Note: It seems to use the sorta-compatible Shugart interface, as it uses pin 6 which is N/C in the IBM format.
for "Drive Select" it's hooked up to DS1/DS2/DS3/DS4.
I have an identical (presumably: I need to open my case up and double-check) unit installed in my main PC.
It identifies itself to windows as "TEAC USB UF000x USB Device", VID=0644 PID=0000.
The drive doesn't support DD (720k) disks or 1.68mb DMF disks.
- Floppy drive connector pinout
- ebay auction where I bought this, on 12/28/2018